Sectional furnace wall



. 8, 1931. D. s. JAcoBu's SECTIONAL FURNACE WALL Original Filed Jan. 3 Shets-Sheet INVENTORI BY 7 w ATTORNEYS.

Dec. 8, 1931. D. s. JACOBUS SECTIONAL FURNACE WALL Original Filed 1 1925 5 Sheets-Sheet 2 III II I I I II I lNVENT R 5.

ATTORNEYS a Sheeis-Sheet s INVENT R kiwi/5. BY WM ATTORNEYS.

Dec. 8, 1931. D. s. JACOBUS SECTIONAL FURNACE WALL Original Filed Jan. 13, 1925 Patented Dec. 8, 1931 UNITED STATES PATENT orrlca I DAVID S. J'ACOBUS, OF HONTCLAIR, NEW JERSEY, ASSIGNOB TO FULLER LEHIGE GOM- PAN Y, 01 FULLERTON, PENNSYLVANIA, A CORPOBATION OI DELAWARE SECTIONAL FURNACE WALL Original application filed J'anuary ls,

January 13, 1925. The invention will be best.

understood from the following description and the annexed drawings, in which I have shown selected embodiments of the invention and in which;

Fig. 1 is a vertical sectional view through a furnace and associated boiler showing one form of the invention.

Fig. 2 is a rear or outward view of a portion of the wall appearing in Fig. 1, and taken substantially on the lines 22 of Figs. 3 and 4.

Fig. 3 is a view taken on the line 33 of Fig. 2.

Fig. 4 is a view taken on the llne 44 of Fi 2.

Fig. 5 is a view corresponding to Fig. 3, butshowing a detail thereof on an enlarged scale, this view being taken on the line 5-5 of Fig. 6. I

Fig. 6 is a view taken on the line 6 -6 of Fig. 5.

Fig. 7 is a view corresponding to Fig. 5, but showing a different embodiment of the invention, this view being taken on the line 77 of Fig. 8.

Fig. 8 is a view taken on the line 88 of Fi 7.

l teferring to Fig. 1, I have shown the furnace wall of this application as bounding a combustion chamber 1 of a furnace which may be supplied with fuel from a pulverized coal burner 2 and above which is a boiler 3 of known form. The hot gases after passing over the boiler, pass through an air heater 4 and out through an outlet flue 5. Air is forced by a fan 6 through the heater and thence into a space 7 between the inner and outer portions of the wall. The novel features of this application are concerned primarily with the inner portion of the wall which is best shown in the other figures of the drawings.

Preferably, I construct the walls of the furnace so that they are, in effect, made up of independent sections, which sections may be made as small as desired. I also preferably construct these sections so that the parts 1825, Serial No. 2,081. Divided and this application filed December 11, 1928. Serial No. 326,388.

of any one of them may be taken out and replaced without disturbance of the remainder of the wall, and I also arrange these sections in relation to each other so that relative movement may take place therebetween so as to take up the expansions and contractions to which such a wall is subjected.

Referring now to Figs. 2 to 6 inclusive, I have shown a plurality of vertically disposed fixed supports 8 supporting an outer caslng 9 whic forms tne outer portion of the wall. The inner portion of the wall is slpported on the members .8 by a plurality rackets 10 to bars 11.

Each section of the wall is preferably formed of a plate 12 having a plurality of bulbed projections 13 adapted to engage recesses in wall tile 14. These plates 12 are preferably provided with one or more hooks 15, four of such hooks being shown for each late in this embodiment. Two of these ooks are disposed adjacent the top of the plate, and two near the bottom. Preferably which are secured transverse the plateshave overlapping edges, as plain- 1y shown in Fi s. 2 and 4, provided for relative movement tween the plates, due toexpansion and contraction. Each plate is preferably provided near its bottom with an inwardly extending projection 16 which is adapted to support the lowest tile on that section, and also to enga e one of the facing tile 17, whereby each Tate will support a plurality of tile, both tihe wall tile and the facing tile.

As plainly shown in Figs. 5 and 6, each of the wall tile 14 is provided with a vertically arranged hole or passage 18, these holes together forming a substantially continuous passage through the wall, the holes being in line with each other for this pur pose. This arrangement provides a duct through the body of the wall tile for the circulation of air which may be supplied thereto or which may enter the passage through the cracks between the tile. Prefer- 19 and 19, with the distance between adjacent projections on each tile less near the ends of the projections than near their bases 20. By this means the facing tile are held against inward movement and, at the same time, may be slid vertically into and out of engagement with the wall tile.

Referring now to Figs. 7 and 8, each of the wall tile 21 is mounted on the plate 12 in substantially the same manner as just described above. In this form, however, each of the tile is provided at its upper part with a notch 22 whichisengaged by a hook 23 on a relatively thin facing tile 24. Each of the wall tile has a lip 25 adjacent the notch 22, and this lip is a sufiicient distance below the bottom of the next higher tile to permit insertion of the hook therebetween. Prefer- I ably each. of the tile has its lower end overlapping the hook on the next lower tile.

I claim v p 1. A furnace wall having vertically disposed tile supports, wall tile supported on g and by said supports inwardly thereof, and

facing tile supported on said wall tile and interlocked therewith, each vertical row of wall tile having a vertical opening extending through each tile of said row.

2 A furnace wall having vertically disposed tile supports, wall tile supported on and by said supports, and facing tile supported on said wall tile, each wall tile having a horizontally extending recess in its. inner face and each facing tile having a projection at its top to engage in said recess to he -supported thereby, each facing tile being relatively thin with its lower edge projecting over the upper edge of the next lower facing tile. 3. A furnace wall having a support,a plurality of wall tile carried on said support inwardly thereof and each having vertically disposed grooves in the face thereof. and facing tile having projections disposed in said grooves.

4. A furnace wall having a support, a plurality of wall tile carried on said support inwardly thereof and each having vertically disposed grooves in the face thereof, and facing tile having projections disposed in said grooves, the edges of said facing tile abutting and the faces thereof forming a substantially continuous surface.

5. A furnace wall having a support, aplurality of wall tile on said support and each. having vertically disposed grooves in the face thereof, facing tilehaving projections disposed in said grooves, and vertically disposed passages in each of said wall tile disposed in line with each other to form a continuous passage through the wall.

6. A furnace wall having a support, a plurality of wall tile disposed edge to edge on said support and each having vertically disposed grooves in the face thereof, facing tile disposed substantially edge to edge and having projections disposed in said grooves, and

a projection on said support enga 'ng at least one wall tile and -one facing tifi in a vertical row.

7 A furnace wall comprising a plurality of tile disposed oneabove the other, a notch adjacent the top ofeach tile and having a lip spaced from the bottom of the next higher tile, and a facing tile having a book of such dimension that'it may be inserted between said lip and said bottom of the higher tile.

8. A furnace wall having a support, a plurality of Wall tile on said support and each having vertically disposed grooves in the face thereof, facing tile-having projections disposed in said grooves, and vertically disposed passages in each of said wall tile disposed in tween the projections on both of said tile be-' ing less near the ends of the projections than near their bases.

DAVID S. JACOBUS. 

